<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .nav a {
            display: inline-block;
            width: 120px;
            height: 58px;
            background-color: pink;
            text-align: center;
            line-height: 48px;
            text-decoration: none;
        }

        .nav .bg1 {
            background: url(images/4e7ced9e99fcbfdde33b49e7b51740b8.jpg) no-repeat;
        }

        .nav .bg1:hover {
            background-image: url(images/eb2aadd7ab7620018e3d572a1c8531c7.jpg);
        }

        .nav .bg2 {
            background: url(images/69e48ff8fc35203f392e3026337f7f0a.jpg) no-repeat;
        }

        .nav .bg2:hover {
            background-image: url(images/cccb3434af0cecf918c360756969a839.jpg);
        }

        .nav .bg3 {
            background: url(images/9c965539cd14de4c425245f35f1ed32b.jpg) no-repeat;
        }

        .nav .bg3:hover {
            background-image: url(images/9c965539cd14de4c425245f35f1ed32b.jpg);
        }

        .nav .bg4 {
            background: url(images/cccb3434af0cecf918c360756969a839.jpg) no-repeat;
        }

        .nav .bg4:hover {
            background-image: url(images/69e48ff8fc35203f392e3026337f7f0a.jpg);
        }

        .nav .bg5 {
            background: url(images/eb2aadd7ab7620018e3d572a1c8531c7.jpg) no-repeat;
        }

        .nav .bg5:hover {
            background-image: url(images/4e7ced9e99fcbfdde33b49e7b51740b8.jpg);
        }
    </style>
</head>

<body>
    <div class="nav">
        <a href="#" class="bg1">五彩导航</a>
        <a href="#" class="bg2">五彩导航</a>
        <a href="#" class="bg3">五彩导航</a>
        <a href="#" class="bg4">五彩导航</a>
        <a href="#" class="bg5">五彩导航</a>
    </div>
</body>

</html>